1. Function. Universal dimming actuator REG-K/2x230/ 300 W. Universal dimming actuator REG-K/230/ 500 W. Universal dimming actuator REG-K/230/ 1000 W

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1 L L N N on error RUN KNX EIB Chapter 9: Dimming actuators/control units Chapter 9:Dimming actuators/control unitsart. no.6493xxas of 10/079.2Universal dimming actuators Universal dimming REG-K/4x230/ 150 W instabus EIB Article no /2x230/ 300 W Article no Function The Merten universal dimming actuator REG-K allows you to connect the following loads to each channel and then switch and dim them (depending on the type of universal dimming actuator you have, you will have one or more channels available): ohmic loads (e.g. 230 V incandescent lamps) inductive loads (e.g. inductive transformers with low-voltage halogen lamps) capacitive loads (e.g. electronic transformers with low-voltage halogen lamps) a combination of ohmic and inductive loads a combination of ohmic and capacitive loads The universal dimming actuator automatically recognises the connected loads - see the section on load detection. /230/ 500 W Article no /230/ 1000 W le of Contents Article no Caution The combination of capacitive and inductive loads on one channel can damage the devices. Using transformers to which no load or insufficient loads are connected (even for a brief period of time) to the secondary circuit (see technical data) can damage the devices. In the case of a mixed load (combination of ohmic and inductive, or ohmic and capacitive loads) on one channel, the ohmic load may not exceed 30% of the total connected load of this channel. Otherwise, the wrong load is detected. Different loads may be connected to different channels. When using inductive transformers, the load connected to the secondary circuit must be at least half the size of the nominal load of the transformer. If the load is too small, the channel may shut down automatically. Caution Each dimming channel used requires a minimum load for operation (see technical data). If this is not reached, malfunctions may arise. Note Socket-outlets may not be dimmed. The risk of overloading and the risk of unsuitable appliances being connected is too high. 1. Function 1 2. Operation 2 3. Installation 3 4. Technical data 3 6. Application overview As of 10/07 1

2 2. Operation Operate the dimmer via one of the following: KNX Mechanical extension unit (conventional pushbutton, electronic extension units) Channel buttons on the dimming actuator If bus voltage is available, operation via the extension units and channel keys depends on the parameters of the application (see the separate application description). If there is no bus voltage, you can do the following with the extension units and channel keys: Switch on/off: press the button briefly Dim brighter/darker: press the button and hold it down Memory function (switch on at last brightness value) on/off: press the button briefly 10 times Load detection The first time a channel is switched after the mains voltage is switched on, after a load is connected or after a short-circuit or overload at the output has been rectified, a load detection is carried out automatically (to determine whether an inductive, capacitive or ohmic load is connected). When this happens, the channel switches on for approx. 10 seconds at the maximum brightness, then goes out briefly, and then dims up to the maximum brightness. Operating and display elements (using the REG-K/ 4x230/150 W as an example) A B C D E F A B C instabus EIB L L N N F E D Channel status display (yellow) Channel fault indication (red) Channel button (manual mode) Operating display (green) Programming button (below cover) Programming display (below cover) ON ERROR RUN Meaning of the displays Operating display (green) Channel status display (yellow) Channel fault indication (red) on off off Universal dimming actuator ready for operation (mains voltage and bus voltage available) and channel switched off on on off Universal dimming actuator ready for operation (mains voltage and bus voltage available), channel switched on (switching object = "1") or load detection on off on Overload or short circuit. The channel has been switched off. Mains and bus voltage available on on on No load at output (idle). The channel has been switched off. Mains and bus voltage available off off off No bus voltage and channel switched off, or no mains voltage off on off No bus voltage and channel switched on off off on Overload or short circuit and no bus voltage. The channel has been switched off. off on on No load at output (idle) and no bus voltage. The channel has been switched off. flashes on/off all on Excess temperature. All channels that are switched on are dimmed to minimum power/minimum brightness. Channels which are currently switched off cannot be switched on. See also the section "How to recognise faults". As of 10/07 2

3 L L N N ON ERROR RUN KNX EIB Chapter 9: Dimming actuators/control units 3. Installation Caution All appliances that are installed next to the dimming actuator must be equipped with at least basic insulation. Snap onto a 35 x 7.5 mm DIN profile rail which conforms to standard DIN EN Connect the bus plug and attach the cover of the bus connecting terminal. Connect the cables for the mains voltage, the outputs and the extension inputs. 4. Technical data Power supply KNX: DC 24 V/approx. 5 ma Insulation voltage: AC 4 kv bus/mains voltage Nominal voltage: AC V, 50/60 Hz (fuse10a) Minimum nominal power: All dimming actuators: > 30 W ohmic loads > 50 VA inductive loads > 50 VA capacitive loads L N 10 A + KNX - Maximum nominal power (ohmic/indctive or ohmic capacitve): REG-K/230/1000: 1000 W/VA REG-K/230/500: 500 W/VA instabus EIB REG-K/2x230/300: Assignment Ch** 1 W/VA Ch 2 W/VA 2 channels channel 500 -* -* 500 Risk of fatal injury from electric current. The outputs may carry an electrical voltage even when the dimmer is switched off. Always disconnect the fuse in the incoming circuit from the supply before working on connected loads (safety notes from DIN VDE 0105). Caution The extension inputs must be connected to the same phase as the power supply of the dimming actuator. Both connecting terminals for the L and the N connection are jumpered internally for all universal dimming actuator types. The connections of the dimming output and the extension input of a channel are either individual terminals or two internally jumpered terminals (pay attention to the marking), depending on the dimming actuator type. REG-K/4x230/150: Assignment Ch 1 W/VA Ch 2 W/VA Chh 3 W/VA 4 channels channels 300 -* * channels 300 -* -* channel 300 -* -* -* -* 300 -* -* -* -* 300 -* -* -* -* 300 * No loads may be connected. ** Ch = Channel Ch 4 W/VA The maximum power values specified presume a mains frequency of 50 Hz and an ambient temperature up to approx. 30 C. When operating with a mains frequency of 60 Hz, the maximum power values are reduced by approx. 15%. The changes in power relative to the ambient temperature can be seen in the diagram which follows. As of 10/07 3

4 5. Settings in the EIB Tool Software (ETS) 100 % 80 % 60 % 40 % 20 % 0 % C Ambient temperature: Operation: -5 C to +45 C Storage: -25 C to +55 C Transport: -25 C to +70 C Max. humidity: 93 % relative humidity, no moisture condensation Environment: the device is designed for use at an installation height of up to 2000 m above sea level (MSL Type of protection: IP 20 Connections: Inputs, outputs: Screw terminals single-core: 1.5 mm 2 bis 2.5 mm 2 finely strandes (with connector sleeve): 1.5 mm 2 bis 2.5 mm 2 KNX: bus connecting terminal Maximum cable length between extension input and extension unit: mechanical extension units: 100 m electrical extension units (e. g ): Nominal voltage of extension units: Protection functions: Guidelines: 20 m (max. 10 with a max. total cable length of 20 m) AC 230 V ±10%, 50/60 Hz (identical phase to mains connection) Electronic load detection Shor-circuit, overload and idling detection Excess temperature detection (dimming actuator temperature) 73/23/EEC low-voltage guideline 85/336/EEC EMC guideline Selection in the product database Manufacturer: Merten Product family: 4.6 Universal dimming actuator Product type: DIN rail-mounted REG-K Program name: Media type: Twisted Pair Product name: Order number: 6493xx To guarantee the full functionality of the applications under ETS2, ETS2 version 1.2 or higher and Service Release A or higher should be used. If you have any queries, please contact the Merten infoline. 6. Application overview Application Universal dimming 3242/1.0 Vers. Function 1 Dimming operation (KNX, extension units and on device) Different dimming curves and dimming speeds Same dimming time Memory function ON/OFF delay Staircase time function with/without manual OFF function Scenes (up to eight stored brightness values can be retrieved) Central function Logic operation or priority control Blocking function Status feedback Behaviour on bus voltage recovery As of 10/07 4

5 6.0.1 General information on the application You can use this software application to program universal dimming actuators from the REG-K range with a manual mode and extension input. The universal dimming actuators control the brightness of the connected luminaire. You can configure the control function separately for each output channel of the dimming actuator. You can also operate the dimming actuator using the channel keys at the front of the device, or via extension unit push-buttons. For more information, please refer to the section "Manual operation and status displays". Group addresses are managed dynamically. The maximum total for the group addresses and associations is 172. The limit for the telegram rate of the device is set to 127 telegrams every 17 seconds. Caution: If you switch back to the preset values in the ETS, then all of the changes that you have made up to then will be reset. Note: Due to the fact that some functions depend on other functions, the corresponding tabs and parameters for these functions are only visible and can be selected in the ETS when the respective functions are or have been enabled. If you disable functions or change parameters, group addresses that have already been connected may be deleted again. Note: The values of some parameters only become active when those functions which are influenced by these parameters are. Adjustable times (staircase timer, ON delay, OFF delay etc.) are adjusted via the time base and time factor parameters. The actual time is calculated by multiplying both values; e.g. time base 1 second times time factor 3 gives 3 seconds. When only one of these parameters is displayed, the time for the selected parameter setting cannot be set. However, if appropriate, other factors in other tabs may influence the times. Application functions With this software application, the universal dimming actuator is capable of executing the following functions: - Basic functions Switching (1 bit), relative dimming (4 bit), absolute dimming/value dimming (1 byte) - Advanced functions Time functions (ON/OFF delay, staircase timer), scenes, central function - Higher-level functions Logic operation or priority control, disable function The individual functions and the possible parameter settings in ETS are described in the sections below. Setting the dimming parameters Dimming range The range between the minimum and maximum brightness of a lamp which can be set with the aid of a dimmer is specified by the technical dimming range. The minimum brightness value which can be set corresponds to the of 1%. The maximum brightness value which can be set corresponds to the of 100%. On Maximum brightness Technically feasible dimming range Off Minimum brightness As of 10/07 5

6 The dimming range which is technically possible can be limited using the software application to a minimum and a maximum. This limitation can be set individually for each output channel. Technically feasible dimming range s: Maximum dimming value e.g. 90% Dimming range for which parameters can be set s: Maximum dimming value e.g. 10% The dimming range which can be parameterised is set using the following parameters: X: General Minimum in % Maximum in % The limits of the parameterised dimming range may not be exceeded or not reached. If, regardless of the function, a telegram is received which demands a lower or a higher value, the respective minimum or maximum value is set (for information on the possible functions, please refer to the section later on in this manual). Example:minimum = 10%, maximum = 90% Telegram value = 5% => output = 10% Telegram value = 70% => output = 70% Telegram value = 95% => output = 90% Basic dimming curve You can use the basic dimming curve to adjust the control behaviour of a channel to the physical characteristics of different luminaires. Specific basic dimming curves are stored in the software application for incandescent lamps and halogen lamps. You can select the basic dimming curve for each channel via a parameter: X: General Basic dimming curve If you wish to set your own dimming curve, select "adjustable". You can then change the setting of the threshold values and the times of the dimming sections in the "Basic dimming curve" tab: X: Basic dimming curve 1. threshold value in % 2. threshold value in % 3. threshold value in % Time base for 1st dimming section Time factor for 1st dimming section (1-255) Time base for 2nd dimming section Time factor for 2nd dimming section (2-255) Time base for 3rd dimming section Time factor for 3rd dimming section (3-255) Time base for 4th dimming section Time factor for 4th dimming section (4-255) The basic dimming curve is divided into four dimming sections. You can determine the initial value of the dimming curve via the parameter value "Minimum in %", and the final value via the "Maximum in %" parameter value. The interim stages are determined by three threshold values. With the time base and time factor, you define the length of time until the next threshold value is reached. This time change to the gives the dimming speed. As of 10/07 6

7 100% Maximum Threshold value 3 Threshold value 2 Threshold value 1 Minimum Dimming section 1 Dimming section 2 Dimming section 3 Dimming section 4 The dimming hardware requires at least 500 ms to run through the entire dimming range from 0% to 100%. Please observe this limit value when setting the dimming times for the individual dimming sections. Overall dimming times which are shorter than 500 ms cannot be executed by the hardware. Note: The dimming curve (the actual voltage curve applied to the output over the time period) is still influenced by the dimming time reductions of the dimming reduction sets, and by the dimming time reduction object; please refer to the section on dimming speed. When setting your own dimming curves, please observe the following limitations: - The period for running through an entire dimming curve is limited to 24 hours. Should longer running times result from the settings you have made, the software application will determine a corrective factor itself, which will reduce your settings back down to 24 hours. - The following conditions apply for the set threshold values: The 1st threshold value must be larger than or equal to the set minimum. Otherwise, the 1st threshold value will be set equal to the minimum value. The 2nd threshold value must be larger than or equal to the 1st threshold value; otherwise, it will be set as equal to it. The 3rd threshold value must be larger than or equal to the 2nd threshold value; otherwise, it will be set as equal to it. If the 3rd threshold value is larger than the maximum, this maximum value determines the upper brightness limit. TIP: Brightness levels which are approximately the same are located between s with the sequence 10, 20, 50, 100 (%). t Dimming speed In the basic dimming curve, you define a basic dimming speed. This basic dimming speed is then further increased by the reductions in dimming time. The actual dimming speed therefore results from the time factors for the basic dimming curve and the parameters for the reductions in dimming time. Here, you can set a dimming time reduction once, regardless of the function or telegram type, and you can also activate another dimming time reduction object via which the dimming time can again be reduced. The reductions in dimming time always uniformly influence all dimming sections in the basic dimming curve. You can use these parameters or this object to then reduce the dimming speed of the basic dimming curve. When the value for these parameters or for this object is 100% or 225, the dimming speed corresponds to the total of the times of the basic dimming curve. When the value is 50%, the dimming time of the basic dimming curve is halved, for example. Since the dimming time can only be reduced with these reductions in dimming time or the dimming time reduction object, it makes sense to parameterise the basic dimming curve to the maximum times required. The speeds can then be adapted to to the respective functions using the dimming time reductions in the dimming time reduction sets. If the dimming time reduction object is de, or dimming time reduction sets 1 to 3 are blocked, the basic dimming curve is subjected to the dimming time reductions in set 0. The pre-set values in this set thus always give different dimming speeds for the different functions or incoming telegram types. Only when all dimming time reductions in set 0 are parameterised to 100% or 225 will the dimming speed for all incoming telegrams correspond to the basic dimming curve. You can define a total of four dimming time reduction sets, which you can then activate using the set object. You can use the dimming time reduction parameter format to select the input format for this parameter: input as a percentile via a selection list (1% to 100% in defined steps), or numerical input (1 to 225). With the numerical input, the value 225 corresponds to 100%. X: Dimming time reductions Format for dimming time reductions for sets As of 10/07 7

8 Adapting the dimming speed in relation to the dimming function The channel output is triggered differently depending on the incoming telegram type (according to the assigned communication object) and the set parameters. The universal dimming actuator (or the application) provides different functions to control the outputs. The way in which this dimming function operates will be described in the following chapters. The dimming speed can be changed according to the dimming function. You can change the dimming speed by reducing the dimming time. The different dimming time reductions for the different dimming functions are compiled as sets. You can define four sets. You can select which set is to be used via the set object. After initialising, set "0" is always active. The other sets must be enabled beforehand. X: Dimming time reductions Set 1 to 3 If the set object receives a value between "0" and "3", the respective set is. Values outside of this range (invalid values) will cause set "0" to be. Each set has six dimming time reductions available, which can influence the dimming curve depending on the dimming function or type of telegram: for switching telegrams (switch object and central switch object), switch on the staircase lighting for dimming telegrams (dimming object and central dimming object) for switching off the staircase lighting for value telegrams (value object and central value object) for scene telegrams for high priority functions (logic operation, priority control or disable function) X: Dimming time reductions Set 0 to 3: Dimming time reduction for switching telegrams and switching on staircase lighting at Set 0 to 3: Dimming time reduction for dimming telegrams at Set 0 to 3: Dimming time reduction for switching off staircase lighting at Set 0 to 3: Dimming time reduction for value telegrams at Set 0 to 3: Dimming time reduction for scene telegrams at Set 0 to 3: Dimming time reduction for high priority functions at faster dimming brighter and darker when switching ON and OFF: dimming time reduction for switching telegrams and switching on staircase lighting at 50%. faster dimming up and slower dimming down of the staircase lighting: dimming time reduction for switching telegrams and switching on staircase lighting at 30%, and dimming time reduction for switching off staircase lighting at 70%. slower dimming up and down for value dimming: dimming time reduction for value telegrams at 80%. faster setting of the scene values: dimming time reduction for scene telegrams at 40. With a set value of 100% or 225, the actual dimming curve precisely corresponds to the basic dimming curve. The values for "Switching off staircase lighting" only have an influence when no cut-out warning has been parameterised; see the section "Staircase lighting function". Adapting the dimming speed using the "Dimming time reduction object" When the dimming time reduction object is, the communication object "Dimming time reduction object" appears. X: Dimming time reductions Dimming time reduction object If the "Dimming time reduction object" receives a valid object value between 1 and 255, the dimming time results from: (parameterised dimming time to date) x (value of "Dimming time reduction object") / 255. e.g. Dimming time parameterised to date = 20 s Value of "Dimming time reduction object" = 25 => Dimming time = 20 x 100 / 255 = 7.8 s Functional change while a dimming function is being executed If the application receives a telegram for another dimming function while a dimming function is running, the parameters for the new dimming function are used immediately. The following illustration shows an example of this principle. You can use these parameters to modify the dimming speed (based on the basic dimming curve) for a large number of solutions. Some examples: As of 10/07 8

9 100% Maximum Dimming value Scene value luminaire 3 Threshold value 3 Scene value luminaire 1 Scene value luminaire 2 Threshold value 2 Threshold value 1 Minimum Switch object = "1" Value object = "1" Scene value = "50%" Value object = "0%" Retrieval of a lightscene The luminaires reach the required scene value at different points in time. Image legend:!: Dimming time reduction for switching telegrams and switching on staircase lighting. $: Dimming time reduction for value telegrams. %: Dimming time reduction for scene telegrams. Communication objects You can select the following communication objects: Per input: Function Object name Type Prio Flags Behaviour Channel X Dimming time reduction object for dimming curve Channel X set 1-3 Dimming time reduction object 1 byte Low WC Transmit/ receive Set object 1 byte Low WC Transmit/ receive The "Same dimming time" function can be used to synchronise the different dimming times of the channels in such a way that all channels reach their set value at the same time. Using the "Time factor modifiable via the bus" parameter (via the communication object "Factor same dimming time"), the dimming times can also be synchronised for several dimming actuators. The "Same dimming time" function is only used in connection with scenes and the central function. If no scene or central function has been, the parameters for the same dimming time have no effect. For the basic dimming curve, an offset factor is calculated when a scene or central function is retrieved, depending on the current output value and on the required function value. The basic dimming curve is extended or compressed, so that all the assigned luminaires reach the required function value at the same time. "Same dimming time" function As we have seen earlier in this section, different luminaires can have different dimming curves. The dimming speed is thus also different for these lamps, i.e. the time for running through the dimming range until the required is reached. Often, different luminaires are combined together in a scene or a central function. If a function of this type is now, the entire group of lamps begins to "dim up" to the required value. Depending on the type of luminaire and the scene value, some luminaires will reach the retrieved value earlier, others later. This effect will also be created when the luminaires addressed when a scene is have different brightness values. Dimming value Retrieval of a lightscene Value for the same dimming time As of 10/07 9

10 You can release the function globally for the device via a parameter, and set the corresponding dimming time after release: General Same dimming time with central function and scenes If the "Same dimming time" parameter has been, you can set the required dimming time in the "Same dimming time" tab and specify whether the time factor should be modifiable via the bus: Maximum Threshold value 3 Same dimming time = 5s Same dimming time Time base for same dimming time Time factor for same dimming time Time factor modifiable via the bus Threshold value 2 Threshold value 1 Minimum Retrieval of central function ON delay = 1s Basic dimming curve = 8s If you have the parameter "Time factor modifiable via the bus", a new communication object will now appear with the designation "Factor same dimming time". This object is now used to set the required time. In this case, the "Factor for same dimming time" parameter is only used for setting the time after a bus reset or download. As soon as the "Factor same dimming time" object has been described with a value for the first time, this value is used to set the time. The assignment of the individual channels to the "Same dimming time" function is conducted individually for each channel for the scene function and central function. The dimming time reduction object and dimming time reduction sets are not taken into account for scenes and the central function for the duration of the same dimming time! If ON or OFF delays have been parameterised, these delay times are taken into account when the offset factor is calculated, but are not modified. These delay times retain their set value. Only the gradient of the dimming curve, and thus the dimming speed, is modified. Example: Current output status: switched off, ON delay = 1s, same dimming time = 5s, retrieval of central function with output value 100% With the basic dimming curve, the output channel requires 8s in order to dim from the OFF status to 100%. Including the ON delay of 1s, this gives 9s. The ON delay is also retained with an identical dimming time. The dimming curve is compressed or extended in such a way that the is reached after the same dimming time. In other words, the calculation of the new dimming curve takes into account the pure dimming time (the same dimming time minus ON delay time). The set dimming time must be larger than 1 second and may not be smaller than any set ON and OFF delays with the individual output channels. If this is not the case, the same dimming time is ignored and the dimming curves are executed normally with the time factors and dimming time reduction sets. Communication objects You can select the following communication objects: Per input: Function Object name Type Prio Flags Behaviour Same dimming time Factor same dimming time 1 byte Low WC Transmit/ receive As of 10/07 10

11 Priorities The functions of the application comprise different priorities in relation to their processing: Basic functions The software application provides three basic functions to control the brightness of the connected luminaires: switching, relative dimming and value high priority dimming. 3 Disable function For each output channel which you have via 2 Logic operation or priority control parameters, three communication objects appear to 1 Switching, dimming, value dimming, time functions, scene, central function control these basic functions: low priority X: General Channel X Priority group 1: In priority group 1, all functions have an equal status, i.e. they can be overwritten by other functions. A function which is currently active is ended when a new control telegram with the same priority is received. New set values for the scene function, the time functions or the central function act in the same way as an update for the "Switch object" of an output channel in relation to the specification of the priority. Priority group 2: When a function from priority group 2 is, the dimmer output is triggered according to the now active output value. The function values for priority group 1 are overwritten and are no longer forwarded to the output, as long as the priority function is active. However, all control functions in priority group 1 continue to be calculated and updated in the background. You can determine the reaction of an output after deactivation of priority control via a parameter (see the chapter in the manual on the priority control function); after a logic operation function has been de, the output is always set to the current output value which the device has calculated in the background. Priority group 3: The disable function with the highest priority level 3 overrides all other functions. The functions in priority levels 1 and 2 also continue to be evaluated in the background here, however, so that after the disable function has been de, the dimmer output can be set to the current required value, or can adopt a status for which the parameters have been set. You can also determine this output behaviour via a parameter in the same way as for priority control (for more on this topic, see the chapter in the manual on the disable function). Please note that any function changes can also lead to changes in the dimming curve and thus the dimming speed (for more on this topic, see also the section on "dimming speed" earlier in this manual). If you have set the parameter "Channel X" to the value "", the following objects appear: - for the "Switch" function:"switch object",length: 1 bit - for the "Relative dimming" function:"dimming object", length: 4 bit - for the "Value dimming" function:"value object", length: 1 byte You will also find additional setting parameters on the parameter window for determining the functioning of the dimming output. Switch function (1 bit) If the "Switch object" receives a telegram with the value "1", the output is "switched on" and the dimming time reduction sets and, where appropriate, the dimming time reduction object, are triggered according to the basic dimming curve and the dimming time reduction "for switching telegrams and switching on staircase lighting". The output is "switched off" with the object value "0". In this case, the dimming curve is run through in reverse (from the maximum value to the minimum value); in other words, it is dimmed down. You can use parameters to specify the maximum value which is triggered: X: General Starting behaviour Settings: -max. brightness: The output channel is set to the value which you have set in the parameter "Maximum in %". -selectable brightness: With this value, an additional setting parameter appears: X: General Initial brightness in % The output is switched on at the set initial brightness value with a "1" telegram. The initial brightness value should not exceed the maximum, since this always limits the maximum output brightness, and is also set when you select a higher value for the parameter. -last brightness value (memory): The output is reset to the last brightness value which it had before switching off after a "1" telegram. After a download or bus voltage As of 10/07 11

12 failure, the value is set here which is defined as the maximum. Relative dimming function (4 bit) You can use the "Relative dimming" function to dim the output brighter or darker relative to its current value. The step size of the brightness change and the dimming direction are determined by the telegram value. for the "Relative dimming" function are received via the "Dimming object" After a relative dimming telegram has been received, a new set value is calculated from the current value, the dimming direction received and the step size received. Example (minimum = 10%, maximum = 90%, current output value = 12%): Dimming brighter telegram with a step size of 25% => New set value: 12% + 25% = 37% Dimming darker telegram with a step size of 12.5% => New set value: 37% - 12,5% = 24,5% The "Minimum " and "Maximum " limit values must be reached, or cannot be exceeded with relative dimming. You can use a parameter to determine the other functions of an output channel when a relative dimming telegram is received: X: General Dimming object switches channel Settings: -not: This parameter setting prevents switching on and off, i.e. the channel remains off, or at the minimum. -only on, not off: The output channel can only be switched on by relative dimming telegrams. If it is switched on and the set value fails to reach the minimum via relative dimming telegrams, the output remains switched on at the minimum. -only off, not on: The output channel cannot be switched on by relative dimming telegrams. If it is switched on and the set value fails to reach the minimum via relative dimming telegrams, the output remains switched off. -on and off: The output channel can only be switched on by relative dimming telegrams. If it is switched on and the set value fails to reach the minimum dimming value via relative dimming telegrams, the output remains switched off. Value dimming function (1 byte) The "Value dimming" function is used when you wish to set the required brightness directly. To do this, send the required brightness value to the "Value object" of the output channel as a percentage between 0% and 100%. The value range is divided into 255 brightness levels. One level has a step width of approximately 0.4%. The telegrams for dimming with absolute values have the 1 byte data format. The required brightness values must lie within the limits which are specified by the minimum and maximum. If the brightness value exceeds the maximum, the maximum is set as the output value. If the brightness value is lower than the minimum dimming value, this is set as the output value. You can complete the settings for switching the dimming output on and off via the "Value dimming" function using a parameter: X: General Value object switches channel Settings: -not: This parameter setting prevents switching, i.e. the channel remains at the current value. -only on, not off: The output channel can only be switched on by value telegrams. If it is switched on and the "Value object" receives the value 0%, the output remains switched on at the minimum dimming value. -only off, not on: The output channel cannot be switched on by value telegrams. If it is switched on and the "Value object" receives the value 0%, the output remains switched off. -on and off: The output channel can only be switched on by value telegrams. If it is switched on and the "Value object" receives the value 0%, the output remains switched off. Communication objects You can select the following communication objects: Per input: Function Object name Type Prio Flags Behaviour Channel X General Channel X General Channel X General Switch object 1 bit Low WC Transmit/ receive Dimming object 4 bit Low WC Transmit/ receive Value object 1 byte Low WC Transmit/ receive Advanced functions The advanced functions are the functions of the software application which share the same priority as the basic functions "switch", "relative dimming" and "value dimming" (for more on this topic, see the section on priorities). The advanced functions are time As of 10/07 12

13 functions (ON/OFF delay, staircase timer), scenes and a central function. Any update of one of the basic functions or an advanced function overrides the current status, and sets the dimming output according to the last function value received. Time functions Delay functions The delay functions delay the switching on or off of an output channel. They are switched upstream or downstream in relation to the actual output functions, i.e. they delay the execution of the requested output command. The delay functions affect the basic functions and the advanced functions. The priority functions are always effective immediately and without a delay. The dimming curve with the delay functions follows the basic dimming curve and the current dimming curve reduction of the current dimming curve reduction set and, when appropriate, the dimming curve reduction object (please refer to the earlier section on "Dimming speed"). You can select the delay functions for each channel via a parameter: X: General Delay times When you have enabled the delay functions for an output channel, a new parameter window will appear for this channel for activation and in order to make detailed settings for the functions. -- ON delay The ON delay becomes active when the output is currently switched off, and is now set to be switched on via a new telegram for a basic function or an advanced function. If you wish to use the ON delay, you must activate the function: Settings: -de: The ON delay is not active. -retriggerable: If the channel receives an ON telegram, the ON delay is started. If a new ON telegram now follows while the delay time is running, the delay time is restarted. The value of the new telegram is set as the new set value, which is after the delay period has expired. If the new value is the "STOP dimming" value for relative dimming, the output value is set to the minimum after the delay period has expired. ON delay ON delay -not retriggerable: If the channel receives an ON telegram, the ON delay is started. If a new ON telegram now follows while the delay time is running, this is ignored and the ON procedure is executed after the delay time initially started has expired. The value of the new telegram is set as the new set value, however, which is after the delay period has expired. If the new value is the "STOP dimming" value for relative dimming, the output value is set to the minimum after the delay period has expired. X: Delay times ON delay ON delay ON delay If the channel receives an OFF telegram while an ON delay is active, the ON delay is interrupted. As of 10/07 13

14 ON delay ON delay -- OFF delay The OFF delay becomes active when the output is currently switched on, and is now set to be switched on via a new telegram for a basic function or an advanced function. Please note: the OFF delay is not effective in a negative dimming direction with relative dimming commands, since these are not specific OFF commands. If you wish to use the OFF delay, you must activate the function: You can use a parameter to set whether the output channel remains switched off during the ON delay, or whether it is already set to the minimum dimming value. X: Delay times Output during the ON delay X: Delay times OFF delay Settings: -de: The OFF delay is not active. -retriggerable: If the channel receives an OFF telegram, the OFF delay is started. If a new OFF telegram now follows while the delay time is running, the delay time is restarted. The specific delay time for the ON delay results as a product from the time base and the factor; the standard values result in an ON delay of 3 seconds. X: Delay times Time base for ON delay Time factor for ON delay (1-255) OFF delay OFF delay -not retriggerable: If the channel receives an OFF telegram, the OFF delay is started. If a new OFF telegram now follows while the delay time is running, this is ignored and the OFF procedure is executed after the delay time initially started has expired. As of 10/07 14

15 OFF delay Please note that different dimming speeds may be present for the ON and OFF procedure. The staircase lighting time only begins when the output channel has reached the final after dimming up. The dimming time is therefore not included in the staircase lighting time. The during the staircase lighting time is the (parameterised) maximum. OFF delay Value object = "80%" If the output receives a new telegram while an OFF delay is active, which creates an ON status, the OFF procedure is halted and the new set value is set. If the output is currently conducting a dimming procedure when an OFF telegram is received, this dimming procedure is stopped. The output remains in the current for the duration of the OFF delay, before it switches off after the delay has expired (see the chart for the "not retriggerable" setting"). If a staircase lighting function with manual OFF is active, the output is not switched off immediately by a manual OFF command, but only when the set delay time has expired (please also refer to the following section on the staircase lighting function). The specific delay period for the OFF delay results from your settings as a product of the time base and the factor: X: Delay times Time base for OFF delay Time factor for OFF delay (1-255) With the standard values, an OFF delay of 3 seconds is produced. Staircase lighting function The staircase lighting function offers you the option of switching on a dimmer output with a telegram in such a way that this output switches itself back off automatically after a specified time has expired, and without a new control telegram. Since this function is often used to control the lighting in staircases, it is named accordingly. The dimming curve with the staircase lighting function follows the current dimming curve reduction of the current dimming curve reduction set and, when appropriate, the dimming curve reduction object (for more information on the dimming time reduction set, please refer to the earlier section on "Dimming speed"). You can activate the staircase lighting function for each channel via a parameter: X: General Staircase lighting function When you have the staircase lighting function for an output channel, a new parameter window will appear for this channel, together with a new communication object labelled "Staircase lighting object". The "Staircase lighting object" has a 1 bit format. The staircase lighting function is controlled via the received telegram values of the "Staircase lighting object". Maximum Note: The staircase lighting function can alternatively be switched on via an extension unit push-button if you have specified this function for extension unit operation. It is not possible to switch off the staircase lighting function with extension unit operation. As of 10/07 15

16 The basis for this setting is given in the description of the staircase lighting function below. For more information on the extension unit function, refer to the section "Manual key operation". You can set the time duration for the staircase lighting time via the time base and time factor: X: Time base for staircase timer Time factor for staircase timer (1-255) Maximum The time duration results from the product of your settings for the time base and factor. The standard values therefore result in a staircase lighting time of 3 minutes. If the "Staircase lighting" object receives a telegram with the value "1", or if the staircase timer function is by an extension unit push-button which has been parameterised accordingly, the dimmer output is switched on and is dimmed to the max. dimming value, remains at this value for the set "Staircase lighting time", and the output channel then dims automatically to the value 0%. Note: During the staircase lighting time, you can modify the output brightness using dimming telegrams via the "Dimming" or "Value object" objects. If the output fails to reach its minimum due to these dimming telegrams, or if the value object is described with the value "00h", the parameter settings for the OFF behaviour of these functions apply. You can use the "Staircase lighting function" parameter to determine whether an active staircase lighting function can be manually interrupted or not: X: Staircase lighting function The individual settings have the following meaning: - with manual OFF, / without manual OFF, : you can initially specify whether an active staircase lighting function can be manually interrupted (= "with manual OFF") or not (= "without manual OFF"). If you have set the parameter to the value "with manual OFF", the output is switched off when the "Staircase lighting" object receives a telegram with the value "0". Note: "Manual OFF" does not refer to switching off the extension units manually, or to the manual keys on the device. "Manual OFF" means switching off via an EIB telegram. If an OFF delay has been parameterised, this function is now active and the output only switches off after the delay time has expired. If you have selected the parameter value "without manual OFF", the staircase lighting function is not interrupted when a telegram with the value "0" is received, but continues to run normally until the staircase lighting time has expired. Maximum Maximum OFF delay As of 10/07 16

17 -..., not retriggerable: With this setting, the staircase lighting function which was started initially runs through normally, even when additional "1" telegrams or switch impulses from an extension unit push-button are received during the staircase lighting time. Maximum Maximum You can limit the potential running time using the "Max. number of time accumulations" parameter. X: Max. number of time accumulations (2-255) -..., retriggerable: If the "Staircase lighting" object receives an additional "1" telegram while a staircase lighting function is active, or if switch impulses are received from an extension unit push-button, the staircase timer is restarted. This occurs when a "1" telegram or an extension unit impulse is received while the function is active. If the staircase lighting time has expired, the dimming output is dimmed down and switched off according to the settings for the dimming speed and the current speed set. You can however use the function "Cut-out warning" to influence the dimming down behaviour over time at the end of a staircase lighting function: X: Cut-out warning for staircase lighting time Warning time for staircase lighting time in seconds (1-255) Maximum If you have the cut-out warning, you can set a "Warning time" as a time period between 1s and 255s (=4min15s). This "Warning time" determines how long the dimming down procedure should last. The active values for the dimming speed and the dimming time reduction sets are no longer taken into account in this case. The dimming curve is extended or compressed to the set warning time while dimming down. Maximum Staircase lighting function without warning time -, totalling time: If the "Staircase lighting" object receives a second start signal (a "1" telegram or switch impulse from an extension unit push-button), while a staircase lighting function is active, the active staircase lighting time is doubled. With a third start signal, the staircase lighting time is tripled, and with the fourth start signal, it is quadrupled. The actual staircase lighting time therefore results from the staircase lighting time being multiplied according to the number of received start signals. The maximum possible running time for this function is 255 hours. Maximum Maximum Staircase lighting function with warning time warning time Staircase lighting function with OFF delay and warning time OFF delay warning time Regardless of which the output has after the staircase lighting function has expired, the time duration for the dimming down procedure always As of 10/07 17

18 corresponds to the warning time when the cut-out warning is active. Maximum Value object = "40%" Staircase lighting function with warning time warning time If you have parameterised a cut-out delay for the dimmer output, the warning time begins after the delay period has expired. Note: After the staircase lighting time has expired, a new staircase lighting function sequence is started when a new "1" telegram is received at the "Staircase lighting" object, or when a new switch impulse is received from an extension unit push-button, even when the output is still dimming down, or when a warning time is active. At this point in time, a "1" telegram or a switch impulse is therefore no longer valid as a trigger signal for restarting the staircase lighting time, or to accumulate the staircase lighting times. Logic operation between the switch object and the staircase lighting object In order to control a dimming output, its switch object is connected with its staircase lighting object with a logical OR operation. You can overwrite a running staircase lighting function using a telegram for the switch object. In this case, the staircase lighting function continues to run normally in the background. The brightness of the logic operation result and the dimming speed is defined by the last telegram (see the charts below). = "1" Maximum Staircase lighting (max. brightness) Initial brightness for switching Switch object = "1" = "1" Switch object = "1" Switch object = "0" Switch object = "0" Switch object Staircase object s: "Switch object influences" OR ON/OFF delays Staircase lighting (max. brightness) Initial brightness for switching " influences" You can invert, or not invert, the effect of the two object values on this logic operation using parameters: X: General Switch object influences X: Staircase lighting time Staircase object influences If you set the parameter value to "not inverted", the logic operation is formed with the current object value; the object value "0" remains "0" and the object value "1" remains "1". If you set the parameter value to "inverted", the logic operation is formed with a value which is opposite to the current object value; Object value "0" becomes "1" and object value "1" becomes "0". = "1" You can use this, for example, for temporary continuous light switching (cleaning lighting). An ON telegram from the switch object causes the light in the staircase lighting function to remain switched on continuously. Value, dimming, scene and central telegrams continue to be influential, however. For an application of this type, an initial brightness of 100% would be suitable when switching on. Another potential application is a staircase lighting function with a continuous basic brightness (e.g. in hospital corridors). For this purpose, the required basic brightness is parameterised as the initial brightness when switching on, and the staircase lighting function is switched e.g. via a movement detector. Switch object = "1" Switch object = "0" As of 10/07 18